| 摘要 |
A door lock has a lock case 20, in which a bolt 1 is displaceably fitted. For displacement of the bolt 1, a key-operated cylinder lock 2 is designed to interact with a first and second power transmission element 5, 14 fitted in the lock case 20. On the opposite side of the lock housing 1 relative to the cylinder lock 2, a knob is fitted. The power transmission elements 5, 14 are in power-transmitting connection one with the other. In the lock case 20 there is a third power transmission element 12, which is connected to the knob and is adjustable by this into two adjustment settings a considerable distance apart. In one of these settings, the knob is coupled with the bolt 1 by means of the first transmission element 5 and in the second setting the knob is disconnected from the bolt 1. The third power transmission element is preferably designed to be resettable only once the bolt 1 has retracted into the lock case 20. The lock in this case has a locking setting, in which the locking can only be cancelled by means of the key. <IMAGE> |
